package c3.Example04;
class Student {
    private String name;
    private int age;

    public String getName() {
        return name;
    }

    public void setName(String name) {
        this.name = name;
    }

    public int getAge() {
        if (age <= 0) {
            System.out.println("您输入的年龄有误！");
        } else {
            this.age = age;
        }
    }
public void read(){
    System.out.println("大家好，我是"+name+"，年龄"+age);
    }
}
public class Example04 {
    public static void main(String[] args) {
        Student stu = new Student();
        stu.setName("张三");
        stu.setAge (-18);
        stu.read();
    }
}
